Gemini 3
Google DeepMind's third generation launches across Search, the Gemini app and its developer tools on one day, and takes the lead on most benchmarks; the search company is now the frontrunner.
what had to happen · 62 events back to 1943
Every event this one built on, transitively, in order. Direct influences are marked.
00 · One neuron · 1
I · Foundations · 11
- 1948A mathematical theory of communication
- 1949Cells that fire together wire together
- 1950Programming a computer for playing chess
- 1950Computing machinery and intelligence
- 1958The perceptron learns
- 1959Samuel's checkers program coins 'machine learning'
- 1960ADALINE and the least-mean-squares rule
- 1965Moore's law
- 1966ELIZA
- 1969Perceptrons
- 1970Reverse-mode automatic differentiation
W1 · The first winter · 2
II · Connection · 3
W2 · The second winter · 6
III · Statistics and data · 9
IV · Deep learning · 10
V · Transformers · 8
VI · Everyone · 10
VII · Agents · 2
- 2025DeepSeek-R1
- 2025Gold at the Mathematical Olympiaddirect
Gemini 3 was announced on 18 November 2025 and, unlike its predecessors, was in production the same day: in Search's AI mode, in the Gemini app, in AI Studio and Vertex for developers, in the Gemini command-line tool and in a new agent-first coding editor called Antigravity. The Pro model topped the LMArena leaderboard and most of the reasoning, coding and multimodal benchmarks on release, and a Deep Think mode, descended from the olympiad model, went further on the hardest of them. A Flash version followed in December.
Two years after Gemini's awkward first launch, Google had the advantages it always had: its own chips, the largest distribution on Earth, and a research organisation that had invented most of the architecture. The laboratory that had been embarrassed by ChatGPT in 2022 was, by the end of 2025, the one the others were measured against, with Anthropic close on code and OpenAI on consumer reach.
Gemini 3 is on this timeline as the marker of a settled three-way frontier and of a year, 2025, in which the models were released into products rather than announced as research.
what it led to · 0 events downstream
A leaf, for now. Nothing in the archive has built on it yet.